Look up sine in Wiktionary, the free dictionary.

Sine is a trigonometric function.

Sine(s) may also refer to:

• Siné, Maurice Sinet, a French cartoonist
• Sine, Kurdistan, a city in Iranian Kurdistan
• Sines, Portugal, a city and municipality in Portugal
• Sine wave, a function in maths, physics etc
• Kingdom of Sine a former kingdom in modern Senegal
• Port of Sines, a deep-water port in Portugal
• Short interspersed nuclear element, short DNA sequences in eukaryote genomes

See also

• Sign
• Sinus

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